US Bridges

Rt Hh E over Br Big CR

Fair

Ralls County, Missouri · S 18 T 56 N R 5 W · Structure no. 6744

Built
1959
66 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
144
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Hh E over Br Big CR is a concrete continuous culvert carrying Rt Hh E over Br Big CR in Ralls County, Missouri. It was built in 1959, so it is 66 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 144 vehicles a day, roughly 10% of them trucks, projected to reach 209 by 2044. The structure is 25 ft (7.5 m) long and 27 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesRt Hh E
CrossesBr Big CR
LocationS 18 T 56 N R 5 W
RouteState Highway 0HH
CountyRalls County
StateMissouri
Coordinates39.64422, -91.50186
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic144 (2024)
Projected traffic209 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Hh E over Br Big CR built?

It was built in 1959, making it 66 years old in 2025.

What condition is Rt Hh E over Br Big CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Rt Hh E over Br Big CR carry?

About 144 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Hh E over Br Big CR?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 27 ft wide.

Who owns Rt Hh E over Br Big CR?

It is owned by the State Highway Agency.